Straight-through type honeycomb filler biological membrane reaction system

Abstract

The invention discloses a straight-through type honeycomb filler biological membrane reaction system which comprises a reaction tank, an aeration membrane is fixedly installed at the bottom of the inner wall of the reaction tank, an aeration pipe is fixedly connected to the bottom of the reaction tank, a water inlet pipe is fixedly connected to one side of the reaction tank, and the middle of the inner wall of the reaction tank is filled with filler. The main body appearance of the filler is a cuboid, a plurality of uniformly distributed honeycomb-shaped pore channels are arranged in the direction parallel to the axis of the cuboid, and the filler is arranged right above the aeration membrane; the bottom aeration device is used for supplying oxygen to the internal channel of the filler and realizing the backwashing effect, due to the straight-through pore channel structure of the filler, air and water vertically lift through the pore channel to scrub a biological membrane attached to the pore channel and timely take the aged biological membrane out of the pore channel, the self-backwashing process is completed in the operation process, and the operation efficiency is improved. Extra backwashing equipment is not needed, and the method is economical and efficient.

Description

Technical field [0001] The present invention relates to the field of sewage treatment, specifically to a straight-through honeycomb packing biofilm reaction system. Background [0002] Biofilm method is a commonly used sewage biological treatment method, the principle is that microorganisms in the water body attach to the filler or carrier to grow and multiply and form a membrane sludge (biofilm), after the sewage and biofilm contact, pollutants are adsorbed and converted by microorganisms, and the sewage is purified. The filler acts as a carrier for the attachment and fixation of the biofilm, which affects the processing effect of the biofilm. At present, most of the domestic and foreign use of bio-ceramic particles as biofilm carriers, ceramic particle filler specific surface area is large, porosity is high, hanging film fast, can quickly achieve sewage treatment effect in a short period of time and also has the role of intercepting suspended solids. However, due to the uneven ...

AI Technical Summary

Problems solved by technology

However, due to the uneven distribution of pores on the surface of the ceramsite filler, there are small gaps between the fillers. After a long period of operation, the aging biofilm is easy to cause the filler to be blocked. It needs to be backwashed by air and water scrubbing. A certain shear force can achieve the effect of removing aging biofilm, but the backwashing effect is poor, which is likely to cause defects such as incomplete removal of the film and reduced subsequent processing capacity, as well as increased energy consumption and high operating costs

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